Originally Posted by carlcorn

I like the calculator. It confirmed something I had to learn by experimenting. My FA115 is mounted on a TF 60 sized gold edition mustang. I have run a 15x6 and 15x8 prop and they work OK. The 14x10 works best on that plane because it has the fastest prop speed and that works well for that plane. Plenty of pulling power and sound to match the plane.

I have the same plane in an ARF. The 115 with a 14x10 is an excellent match for it. I fly that plane a lot so I have recently swapped in a Saito FG21 to save on fuel costs. The two engines fly the plane with similar ease but the 115 gets the win for raw power output.

Originally Posted by Notme2

I have the same plane in an ARF. The 115 with a 14x10 is an excellent match for it. I fly that plane a lot so I have recently swapped in a Saito FG21 to save on fuel costs. The two engines fly the plane with similar ease but the 115 gets the win for raw power output.

I bet, but the FG 21 should cover just about all your flying for that model I guess?

Originally Posted by BernardW

I bet, but the FG 21 should cover just about all your flying for that model I guess?

It does. Reaches scale speed (60 mph) with a 15x8 and has more than scale thrust.

I'm not overly impressed with either of my FG21 engines really. Although they both run very sweet at all rpm once broken in and tuned neither of mine reach the benchmark number (8800 rpm with an APC 16x6 prop). Best I can get is 8700 from one and 8450 from the other. Maybe another gallon or two of fuel through them will help.

Hi,
Anyone have any information / history on the thread size for the 300T? I have two bought used, one has 10mm threads on a 10mm crank. The other has 8mm threads on a 10mm crank. No issues with this, just cannot find any info on when and why it changed. My thought is that the smaller thread is a carry-over from the 270T which has the same thread size 8mm on a 10mm crank and that at some point the thread size was then changed to the 10mm version.

Thanks,
Jeff

Originally Posted by Notme2

I have the same plane in an ARF. The 115 with a 14x10 is an excellent match for it. I fly that plane a lot so I have recently swapped in a Saito FG21 to save on fuel costs. The two engines fly the plane with similar ease but the 115 gets the win for raw power output.

Glad to know that I'm not the only one to enjoy the match up of the 115 in a 60 sized mustang. I've considered the FG17 as an alternative for similar reasons (gas is cheep and easy these days). Sounds like it would have to be the FG21 to keep similar performance. I'll most likely stick with the glow but good to know.

Originally Posted by kingsflyer

How about something a bit out of the ordinary? The 70" Black Horse Models BA Eagle is a scale model of a 1930's 3-seater. Mine flies great with a Saito FG21. Half throttle nice slow scale flight. When I get bored, full throttle for some sport aerobatics. Not too big to fit in my truck, but big enough for nice presence in the air. Nice balance.

McD

Thanks for the tip! I just ordered one. Should be a good match for a veteran Saito FA-91 that I have sitting in a coffee can looking for a foster home that involves flying.

Originally Posted by Gary Cee

Thanks for the tip! I just ordered one. Should be a good match for a veteran Saito FA-91 that I have sitting in a coffee can looking for a foster home that involves flying.

What a great home for your Saito. The only issue I had was the white decal lettering provided with the kit is kind of thin and looks pink when installed over the red fuselage. Callie Graphics has a full set of decals.

McD

Originally Posted by kingsflyer

What a great home for your Saito. The only issue I had was the white decal lettering provided with the kit is kind of thin and looks pink when installed over the red fuselage. Callie Graphics has a full set of decals.

McD

Thanks for the heads up. Always hear good things about Callie Graphics. Time to give her a try.

Which prop nut/lock nut set do I need for a .72? Saito doesn’t list thread size for their combos for these only listed a letter designations.

Originally Posted by headshot001

Which prop nut/lock nut set do I need for a .72? Saito doesn’t list thread size for their combos for these only listed a letter designations.

Washer/prop nut.......sai5628
Lock nut only...............sai56110
All 3............,......,,,,,,,,,,,,,,sai56135

The thread size is M7 x 1.

Originally Posted by Notme2

Washer/prop nut.......sai5628
Lock nut only...............sai56110
All 3............,......,,,,,,,,,,,,,,sai56135

The thread size is M7 x 1.

Thank you.

Where can i get the copper/Aluminum crush washers for the Saito 170/200 glow R3 or the 33cc Radial?
Need just the washers

Originally Posted by mchandrayan

Where can i get the copper/Aluminum crush washers for the Saito 170/200 glow R3 or the 33cc Radial?
Need just the washers

Google part number sai325R579.

Mac and Lonnie, I did a search on Horizon using the engine code for the 325-R5 which is X and nearly everything Saito makes comes up but only a single 325 part, the back plate.

Originally Posted by I TOBOR

Mac and Lonnie, I did a search on Horizon using the engine code for the 325-R5 which is X and nearly everything Saito makes comes up but only a single 325 part, the back plate.

This one?
http://https://www.horizonhobby.com/...AI325R517.html